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Flag State · Ship Register
Japan
Primarily Other Types· JP
1,584
vessels
29.2M dwt
total dwt
13.0
avg age (yrs)
18%
>20yr share
Country hub
Japan: owners, ports, people & news
Safety performance
PSC detention & casualty rates · A to E grade per flag
Register Profile
Fleet on the Flag
Tracked vessels1,584
Total deadweight29.2M dwt
Average fleet age13.0 years
Over 20 years old246 (18% of dated)
Primary segmentOther Types
Owner linkage19 (1% of fleet)
Composition
Segment Mix
Other Types1,249 (79%)
Bulk Carriers292 (18%)
Container Ships42 (3%)
Gas Carriers1 (0%)
Operators
Largest Owners on the Register
A pure derivation over the vessels we track. The Japan fleet count is the number we hold for the register, not the official register size, so a register we under-sample reads low. Average age is deadweight-weighted (the broker convention) over hulls with a known build year; the over-20-year share uses the same build-year-known denominator. Top owners reflect only our owner linkage, which covers 1% of this register. Read the list in that context. Segments use the same classifier as the rest of the platform. Snapshot 2026-10-15.